Rubber heel



March 31. 1925.

v J. J. PERCIVALL RUBBER HEEL Filed June 15 1922 I ///////fi I Q gwventoz waif Patented Mar. 31, 1925..

osnrn J. rnnorvann on Fast banners. NE JERSEY.

' 1 RUBBER HEEL.

Application filed June 13, 1922. Serial No. 568,024.

. To all whom it may concern:

. strength of the heel.

Be it known that'I, Josnrn J. PERCIVALL, a citizen of the United States, and resident of East Orange, in the county-of Essex and State of New Jersey, have invented certain new and useful Improvements in Rubber Heels, of which the following is a specification.

My present invention relates toimprove ments in rubber heels whereby I am able to provide ample cushioning spaces therein without sacrificing the bodily integrity and The result is that the heel'is an excellent shock-absorber and supports the weight without breaking down even after long use. These and other objects and advantages will appear from the following description and drawings.

In the accompanying drawings, Fig. lis a top plan view of a rubber heel of my invention which embodies my improvements in their preferred rorm, the dotted linesindicating the outline of invisible portions or parts within thebody of the heel; Fig. 2 is a vertical cross sectional view on the line 2-2 in'Fig. 1 looking in the direction of the arrows; and Fig. 3 is also a. vertical cross sectional view on the line 33 in Fig. 1 looking in the direction of the arrows. I

Describing now the aforesaidpreferred embodiment of my invention, 1 is the rubber or equivalent resilient body of the heel, 1 being its top surfaceto' be applied next the shoe and 1 being its ground or tread surface. I

2 is a relatively large central space in the body of the heel located wholly above the tread and opening upwardly through the top of the heel, said space having undercut, preferably substantiallyconcave side-walls 2*.

3 3 are a plurality of elongated cushion ing spaces within the heel body bordering the space 2 and located between it and the sides of the heel. These spaces 3 are located wholly above the tread and openthrough the top of the heel by means of narrowslots 3. They also have'rundercut preferably concave sidewalls 3 In the form shown,

the spaces 3 are substantially cylindrical in transverse section. V

4-4 are vertical nail holes through the heel from top to bottom. These are part of the means for attaching the heel to the shoe; and are spaced aroundthe periphery of the walls of the spaces 2 .jacent weight-supporting passage 1- having about the diameter of the head of one of the attaching nails; said passage a in turn leading to a cylindrical passage .4 of much the shank or stem of the nail. "4 is a metal washermolded in the body of the heel between the passages a and 4 and having a hole through it of the same diameter as said passage 4 and continuous therewith. As shown, there is one of these washers for each nail hole. I

Tn attachin the heel, the nails are entered pointwise intothe mouths r and 4 of the holes and thence through the holes in the washers and into 4. Then by using a suitable follow-up tool, the nails are driven into the heel of the shoe until their heads lodge against the washers4.

The construction of the heelis such that it isadapted to be molded as a unit, the cylindrical cores for molding the spaces 3 being pulled through the slots 3.

g The drawings show how the undercutting and 3 enables themto be brought closely together as well as closely to the sides of the heel, without unduly weakening the intervening and adrubber walls. The result is that the heel has high shockabsorbing value without ability to stand up even after long use.

heel accomplishes this and yet is an usually light. .Thus, I prefer'to ,make the central opening 2 extra large which ma terially lightens the heel,relying on the border portion to do the main work of supporting the weight. Thespaces 3 cushion this bOlder portion assisted by the space 2, which latter, of course, also cushions shocks coming from the tread of the heel immesacrificing its L smaller diameter to fit I bodiment of my invention which will neverplurality of elongated upwardly opening theless still be within the scope and spirit recesses bordering the periphery of the heel 1 of my invention and within the scope and with undercut, substantially concave sidespirit of the annexed claim, and as such walls.

are intended to be covered thereby. Also .Signed at New York, in the county of certain features may be used Without others. New York and State of New York this 12th What I claim is:

day of June, A. D. 1922. A rubber heel having formed therein a JOSEPH J. PERCIVALL. 

